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Miao Zhongchun treated the wife of Yu Runfu, who was nine months pregnant and suffering from Yangming syndrome (a stage in Shanghan Lun where heat is abundant) due to cold damage. She presented with headache, high fever, extreme thirst, and a black tongue coating with prickles, indicating a critical condition. Miao administered Zhuyeshigu Tang (Bamboo Leaf and Gypsum Decoction). He requested Baiyaizi (Aristolochia debilis root, used for treating horse diseases), but it was unavailable, so he applied mud from the bottom of a well to her umbilicus, replacing it when dry. Within one day and night, she consumed fifteen taels and five qian of gypsum. The illness resolved, and she delivered a healthy daughter; both mother and child were safe.

When treating cold damage during pregnancy, protecting the fetus is paramount; otherwise, miscarriage and death are common. Pulverize Baiyaizi, mix with egg white, spread on cotton paper to the size of a bowl, and apply from the umbilicus down to the area below where the fetus is implanted. If it dries, moisten it with water. Do not forget this method near delivery.

Feng Chuzhan treated a pregnant woman who, after overwork and exposure to cold, suddenly developed cold limbs, severe asthma and urgency, profuse sweating on the forehead like rain, and deep, fine pulses nearly imperceptible. He prescribed Ren Shen (Ginseng Root) 5 qian, combined with Gui Zhi (Cinnamon Twig) and Fu Zi (Aconite Lateralis Preparata) totaling 3 qian, decocted and administered. The family asked, "She is three or four months pregnant; will taking Cinnamon Twig and Aconite cause a miscarriage?" Feng replied, "At this time, saving the mother takes precedence over the fetus; there is no case where the mother dies and the fetus survives." After a short while, she vomited clear fluid, the medicine entered the stomach and intestines, sound traveled downward, she belched several times, her breathing eased, sweating stopped, and her pulse gradually recovered. Subsequent mild regulation led to gradual stability. She carried to term and gave birth to a son.

Zhang Luyu treated a woman constitutionally deficient in Qi and prone to phlegm. At three months pregnant, she caught cold while attending a funeral in the twelfth lunar month, resulting in aversion to cold, vomiting of clear fluid (the character 'blood' is likely an error for 'water'), abdominal pain, and a sensation of bearing down. Her pulse was wiry and fine as a thread, barely perceptible upon pressure. He administered Shengliao Ganjiang Renshen Banxia Wan (Raw Material Dried Ginger, Ginseng, and Pinellia Pill). After two doses, there was no response. He then switched to Fuzi Lizhong Jia Ling Ban Rougui Tang (Aconite and Poria Decoction with Added Poria, Pinellia, and Cinnamon Bark), which cured her through regulation. Generally, if the maternal constitution tends toward heat, Huang Lian (Coptis Rhizome) brings peace; if toward cold, Gui Zhi and Fu Zi bring peace; if toward phlegm, Fu Ling (Poria) and Ban Xia (Pinellia Tuber) bring peace. The key is to adjust the excess and ensure appropriate warmth or cooling. There is no instance where fetal safety exists amidst maternal Qi rebellion, nor is there any case where maternal Qi is stable yet the fetus miscarries. (This view is more natural than Feng's.) Therefore, *Jingui Yaolue* states that in the sixth or seventh month of pregnancy, if there is fetal distension, abdominal pain, aversion to cold, and a sensation of cold in the lower abdomen as if fanned by a wind, Fuzi Tang (Aconite Decoction) should be used to warm the viscera. However, if the syndrome differentiation is not accurate, this method must not be used recklessly. Any error leads to immediate disaster, unlike errors with Huang Qin (Scutellaria Root) or Huang Lian, which might only delay the outcome.